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analog mirrors
Related Posts

  • Forum Post: Analog mirror demos will be at SPIE Photonics West

    rmeza
    SPIE Photonics West will be January 26-28 in San Francisco. This year, you can check out demos using TI's analog mirror products (Booth #315) including a laser steering demo using the TALP1000B and a scanning mirror application for medical imaging. There will be several other demos featuring TI's...
    on Jan 4, 2010

  • Forum Post: UV capable micro-mirror

    Graham Gifford
    I need to deflect a light beam from a fibre optic, through 90 degrees with a switchable system. The light is in the 190nm to 1100nm range. Is there a technology within the MEMS product range that could do this? Best Regards Graham Gifford
    on Dec 9, 2010

  • Forum Post: Re: TALP1000B magnets

    Arthur Turner
    Hi Mike, We do have long term life test data on a different product that uses the same SmCo magnets. A total of 64 parts were actuated for >20,000Hrs at 60C with no significant increase in drive current (no change in magnitization). Regards, Arthur
    on Sep 23, 2011

  • Forum Post: Re: TALP1000B magnets

    Arthur Turner
    Hi Mikhail, These devices are resoanant scanning mirrors. The error in the drive current measurement is +/- 5%. We saw no change to this level. Regards, Arthur
    on Sep 23, 2011

  • Forum Post: Re: Driver design for TALP 1000B

    Arthur Turner
    Hi Jasna, Could you provide a basic application description (use the mirror in a pointing or scanning mode) and a basic discription of your PWM drive circuit. These will help us better answer your frequency question. Regards, Arthur
    on Sep 28, 2011

  • Forum Post: Re: TALP1000B hard stop

    Arthur Turner
    Hi Mike, The TALP1000B does have mechanical rotation stops. These stops limit the maximum rotation angles to a value between 5 and 6 degrees. Regards, Arthur
    on Sep 29, 2011

  • Forum Post: Re: TALP1000B hard stop

    Arthur Turner
    Hi Mike, The rotation stops are an integral part of the design. The TALP1000B has 8 magnets which (in conjuction with the 4 drive coils) provide the torgue required for rotation. Four magnets are easily visible on the reflective mirror side and 4 additional magnets are attached to the underside of...
    on Oct 3, 2011

  • Forum Post: Re: TALP1000B magnets

    Arthur Turner
    Hi Mike, Sorry I just now noticed you post. Average deflection efficiencies are calculated on the currents measured at constant angle, in this case, +/-5 degrees mechanical. "Average" means that only the +/-5 degree currents are used, small non-linearities produce slightly different deflection...
    on Oct 4, 2011

  • Forum Post: Re: TALP1000B hard stop

    Arthur Turner
    Hi Mike, TI recommends that the TALP1000B be operated within the data sheet operational angle specification which is +/-5 degrees mechanical for both axis. All qualification and reliability testing was restricted to this angle range. The mirror hinges can be damaged if a current corresponding to large...
    on Oct 6, 2011

  • Forum Post: Re: TALP1000B hard stop

    Arthur Turner
    Hi Mike, The TALP1000B uses a push/pull type actuator. The coil winding and magnet polarities are arranged so that coil current pushes up on one magnet and pulls down on the other. There is no force on the rotation axis so there should be no sag. The previous statement is strictly true only for small...
    on Oct 6, 2011

  • Forum Post: Re: TALP1000B Replacement Recommendations?

    Arthur Turner
    Hi Brad, TALP1000 m irror s were subjected to a tigh temperature life test as part of the qualification process. Devices were actuated the full 5 degrees mechanical at 60 Hz for 2000 Hrs at 85C. The sample size was 45 parts and both axes were driven using the same sinusoidal waveform rather than the...
    on Oct 18, 2011

  • Forum Post: Re: TALP 1000B

    Arthur Turner
    Hi Ash, Applying 0.7V across pins 1 and 2 or across pins 11 and 12 should result in current flow in the circuit. Please verify that current is flowing (10mA for 0.7 V DC and 7.5mArms for 0.7 V AC). The current flow should result in mirror motion. If this is not the case then the divice may have been...
    on Nov 3, 2011

  • Forum Post: DMD for 248nm laser with 175mJ/cm2 intensity?

    Syed Nadeem Akhtar
    Hi! Are DMDs available to work with lasers at 248nm and 175mJ/cm2 intensity without getting damaged and without introducing much loss in the intensity? If no, can TI (or which other manufacturers) make these?
    on Nov 24, 2011

  • Forum Post: Re: Query Regarding Talp1000b

    Arthur Turner
    Hi Vishal, The TALP1000B is an analog pointing mirror. It does not operate by moving in discrete angular steps. The voltage applied to the drive coils produces a current which results in mirror rotation. There is no minimum current increment for mirror rotation. If you are using a digital to analog...
    on Dec 5, 2011

  • Forum Post: Footprint for TALP1000 b analog pointing mirror

    ishailesh
    Sir, I am working on a pcb layout. I have to generate a footprint for talp1000 b ,so i would like to know about pin size and other relevant mechanical dimension. Please provide the same ASAP. Thanks
    on Apr 4, 2012

  • Forum Post: RE: Query Regarding Talp1000b

    Arthur Turner
    Greetings Vishal, The DAC7724 data sheet lists the maximum analog output current at 5mA. The TALP1000B requires up to 65mA of current to operate the mirror to full angle. The coil drive resistance of the TALP1000B is specified at 66 +/- 5 ohm. If 2.4V are placed across a 66 ohm load the resultant current...
    on Aug 2, 2012

  • Forum Post: RE: Query Regarding Talp1000b

    Arthur Turner
    Greetings Vishal, Two possibilities are: The THS4222 DAC is capable of supplying up to 100mA. The OPA2830 is also a candidate. However, the specs in the OPA2830 datasheet show that it will work but it does not cover the entire range of the TALP1000B current drive (65mA). It can output 63mA...
    on Aug 2, 2012

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